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Shannon Climate

Shannon Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
26.4 26.8 25.1 21.6 18.5 15.7 14.9 15.5 16.5 18.7 22.2 24.3 20.4
Mean Min (°C)
12.6 13.4 12.4 10.8 9.2 7.5 6.5 6.9 7.3 8.2 10.1 11.2 9.6
Mean Rain (mm)
18.9 15.8 31.6 70.4 130.9 167.2 177.6 147.7 133.3 76.3 54.7 29.7 1056.7
Median Rain (mm)
10.8 10.8 19.4 43.4 116.4 150.6 143.6 150.9 132.8 63.2 45.4 15.5 994.4
Mean Rain Days
7.7 7.1 8.9 14.5 18.6 19.2 22.5 19.7 18.9 17.9 13.1 9.5 155.9

Shannon Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
41.0 39.0 41.0 33.1 29.0 22.0 21.0 24.0 28.0 30.3 38.0 41.0 41.0
Low Max (°C)
16.5 17.0 11.0 13.0 9.6 8.8 9.7 8.0 10.0 12.0 13.0 15.0 8.0
High Min (°C)
21.0 24.0 23.0 19.0 19.0 14.0 13.9 13.8 14.6 16.5 20.0 21.0 24.0
Low Min (°C)
4.0 6.0 3.0 2.0 0.0 -2.0 -1.0 0.0 0.7 1.0 1.0 3.0 -2.0
High Rain (mm)
27.0 31.0 35.0 62.0 80.0 46.0 47.0 36.0 38.0 50.0 32.0 42.6 80.0

Shannon Monthly Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Mn. Max (°C)
27.9 28.3 26.9 24.6 19.9 16.5 16.0 17.5 17.8 20.3 24.5 26.9 21.1
Low Mn. Max (°C)
24.1 25.6 22.3 18.6 17.3 14.6 14.0 14.1 14.5 16.4 18.7 20.9 19.6
High Mn. Min (°C)
13.8 15.4 14.7 12.1 11.6 9.1 7.7 8.3 8.3 9.7 12.2 13.2 10.4
Low Mn. Min (°C)
11.4 11.9 10.9 8.6 7.5 5.0 5.1 5.3 5.7 6.8 8.4 9.5 9.1
High Rain (mm)
70.0 36.4 100.8 183.0 208.6 269.0 278.8 206.2 203.4 132.6 151.4 83.2 1357.4
Low Rain (mm)
3.2 2.8 1.0 8.4 66.8 70.2 68.6 31.4 2.4 34.0 15.4 5.0 520.6

Shannon Annual Temperatures & Rainfall

SHANNON

Mean daily minimum temp
Mean daily maximum temp
Highest/lowest on record
Highest/lowest on record
Mean monthly rainfall

Shannon Average Number of Days With Temperatures

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
≥ 40.0°C
0.2 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.4
≥ 35.0°C
1.6 1.9 1.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 1.0 5.3
≥ 30.0°C
7.4 7.8 5.3 1.0 0.0 0.0 0.0 0.0 0.0 0.2 2.4 4.6 24.5
≤ 2.0°C
0.0 0.0 0.0 0.1 0.3 1.2 2.6 1.1 0.9 0.3 0.1 0.0 5.7
≤ 0.0°C
0.0 0.0 0.0 0.0 0.1 0.2 0.6 0.1 0.0 0.0 0.0 0.0 0.8

Shannon 'per Week' Values (14th/86th Percentiles)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max
32.0 33.0 30.9 26.0 21.3 18.0 17.0 18.0 19.0 22.0 27.0 30.6 27.0
Low Max
21.0 21.4 19.0 17.0 15.0 13.0 13.0 13.0 13.2 15.0 17.4 19.0 15.0
High Min
16.0 17.0 16.0 14.0 13.0 10.5 9.0 10.0 10.0 11.0 13.0 15.0 14.0
Low Min
9.0 9.3 9.0 7.0 6.0 4.0 3.0 4.0 4.0 5.0 6.0 8.0 5.0

Shannon Data Availability

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Years of Minima
14 15 16 15 15 15 15 16 16 16 16 16 15.3
Earliest Entry
1997 1997 1997 1997 1997 1997 1997 1997 1997 1997 1997 1996 1996
Latest Entry
2012 2012 2012 2012 2013 2014 2014 2014 2014 2014 2014 2014 2014
Years of Maxima
14 15 16 15 15 15 15 16 16 16 16 16 15.3
Earliest Entry
1997 1997 1997 1997 1997 1997 1997 1997 1997 1997 1997 1996 1996
Latest Entry
2012 2012 2012 2012 2013 2014 2014 2014 2014 2014 2014 2014 2014
Years of Rainfall
14 15 15 15 15 15 15 16 16 16 16 16 15.3
Earliest Entry
1997 1997 1997 1997 1997 1997 1997 1997 1997 1997 1997 1996 1996
Latest Entry
2012 2012 2012 2012 2013 2014 2014 2014 2014 2014 2014 2014 2014

Station Details

SHANNON
Southwest, Western Australia
34.5683°S 116.3367°E 210m AMSL
Commenced 1996
Display Your Local Weather

Weather News

Brown Hill Creek flood mitigation plan to protect '98 per cent' of Adelaide properties

21:58 EDT

Some $140 million will be spent on flood mitigation in Adelaide's inner-south and south-west over the next 20 years after an agreement between the State Government and five local councils.

Perth leaves cool, wet summer behind

17:05 EDT

Perth is enjoying a warm and dry end to what has otherwise wet and relatively cool summer.

Eastern seaboard's soaking start to autumn

12:46 EDT

Parts of Australia's eastern seaboard could receive more than a month's worth of rain in the next week, raising the risk of flooding during the opening days of autumn.